<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>动态表格</title>

    <style>
        table{
            border: 1px solid;
            margin: auto;
            width: 500px;
        }

        td,th{
            text-align: center;
            border: 1px solid;
        }
        div{
            text-align: center;
            margin: 50px;
        }
    </style>

</head>
<body>

<div>
    <input type="text" id="id" placeholder="请输入编号">
    <input type="text" id="name"  placeholder="请输入姓名">
    <input type="text" id="gender"  placeholder="请输入性别">
    <input type="button" value="添加" id="btn_add">

</div>


    <table>
        <caption>学生信息表</caption>
        <tr>
            <th>编号</th>
            <th>姓名</th>
            <th>性别</th>
            <th>操作</th>
        </tr>

        <tr>
            <td>1</td>
            <td>令狐冲</td>
            <td>男</td>
            <td><a href="">删除</a></td>
        </tr>

        <tr>
            <td>2</td>
            <td>任我行</td>
            <td>男</td>
            <td><a href="">删除</a></td>
        </tr>

        <tr>
            <td>3</td>
            <td>岳不群</td>
            <td>?</td>
            <td><a href="">删除</a></td>
        </tr>


    </table>

</body>
</html>